Sewing-machine.



No. 808,046. PATENTED DE 19 H. W. HADLEY. C O5 SEWING MACHINE.

APPLICATION FILED MAY 17,1905.

UNITED STATES PATENT OFFICE.

HORACE W. HADLEY. OF BELVIDERE, ILLINOIS, ASSIGNOR TO AMERICA COMPANY,OF ROCKFORD, ILLINOIS, A CORPORATION OF ILLINOIS.

SEWING-MACHINE.

Specification of Letters Patent.

Patented Dec. 19, 1905.

To all whom it may concern:

Be it known that I, HORACE WV. HADLEY, a citizen of the United States,residing at Belvidere, in the county of Boone and State of Illinois,have invented certain new and useful Improvements in Sewing-Machines, ofwhich the following is a specification.

The object of this invention is to impart the proper movements to theneedle-bar and hook-shaft from a rotatable cam.

The further object of this invention is to impart to the needle-bar andhook-shaft a series of complete movements to each revolution of the cam.

In the accompanying drawings, Figure 1 is an elevation of asewing-machine containing my improvements. Fig. 2 is a face elevation ofthe cam and the bar connecting the needlebar and hook-shaft.

The sewing-machine comprises the base 1,

overhanging arm' 2, supporting the guide 3 for the needle-bar 4. A shaft5 is supported by the base 1, to one end of which is secured the hook 6and to its other end is secured a crank-arm 7. The table or shelf 8supports the work, the presser-foot 9, and the gagebar 10.

To the side of the overhanging arm 2 is pivoted needle-arm 11intermediate its ends. One end of this needle-arm has a pivotalconnection with the needle-bar 4. The end 12 of this needle-arm has ahole 13. From the overhanging arm 2 extends a lug 14, which supports astud 15. A driving-wheel 16 is mounted on the stub-shaft 15 in a mannerto ermit of its rotation. This wheel has a puley 18, over which a beltmay be placed, and also has a handle 19, by which it may be turned. Theinner face of this driving-wheel has a cam groove 17 formed therein,said groove being elliptical in shape for a purpose presently to appear.

A pitman 20 has one end ivotally connected to the crank-arm 7 on t eshaft 5, and its other end su ports a pin 21, which is located in the hoe 13 in the needle-arm 11. This pitman 20 has a lengthwise-extendingslot 22, which receives the stub-shaft 15, supporting the driving-wheel16. A frictionroller 23 is supported by the pitman 20 and is located inthe cam-groove 17. As the driving-wheel is rotated the cam will rotatewith it. This movement of the cam will impart a lengthwise movement tothe pitman 20 and through its connection with the crank-arm 7 willoscillate the shaft 5 and the hook 6 connected with it. This movement ofthe pitman 20 will rock the needle-arm 1 1 on its pivotal connectionwith the overhanging arm 2, which will reciprocate the needle-bar andthe needle carried by it. The cam will, by reason of its peculiar shape,as described, impart a series of complete reciprocations to the pitman20 during each revolution thereof, and these reciprocations will cause acorresponding number of complete movements to be imparted to both theneedle-arm 11 and the hookshaft 5. In other words, the needlebar 4 andhook 6 will be given two complete movements to each single revolution ofthe wheel and cam. I,

I claim as my invention- I In a hand-operated sewing-machine, thecombination with the pivoted needle-arm, the needle-bar, and theoscillatory hookshaft, of a wheel arranged at right angles to said armand having an elliptical cam-groove in its inner face and a hand-crank,a stubshaft on which saidwheel is j ournaled, a pitman having aconnection at one end with the needle-arm, and at its other end with acrank on the hook-shaft, and a friction-roller journaled on one side ofthe pitman and traveling in the said cam-groove, the construction andarrangement of the parts bein such that a single revolution of saidwheel will impart two complete up-and-down movements to the needle-barand two complete oscillations to the hook-shaft.

HORACE W. HADLEY.

Witnesses:

J. S. CLARK, A. O. BEHEL

